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Biology question 9th grade 5 points I really need help
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Question 2 of 5 v
Place the following from smallest to largest, with smallest on the top.
( Instructions
carbon-14 atom
helium atom
electron
proton
a glucose molecule
Next Question
Answers
Answer:proton,electron, helium atom,carbon 14 atom, molecules of glucose
Explanation:
The order for the given scenario can be electron, proton, helium atom, carbon 14 atom, and glucose molecule.
What is an atom?An atom is a matter particle that defines a chemical element uniquely. An atom is made up of a central nucleus and one or more negatively charged electrons.
The nucleus is positively charged and contains one or more protons and neutrons, which are relatively heavy particles.
Protons and neutrons are roughly the same mass. However, one proton is approximately 1,835 times heavier than an electron.
A molecule is two or more atoms linked together by chemical bonds that form the smallest unit of a substance that retains its composition and properties.
Chemistry is built on molecules. Molecules are identified by the element symbol and a subscript indicating the number of atoms.
Thus, the electron, proton, helium atom, carbon 14 atom, and glucose molecule will be the correct arrangement.
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how many valence electrons does each carbon atom have?
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Answer:
Four
Explanation: The carbon atom has four electrons in its outer, or valence, shell. This means that every carbon atom can form four, and only four, covalent (electron-pair-sharing) bonds by pairing its four valence electrons with four electrons from other atoms.
Describe how the amount of light influences the rate of photosynthesis
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Without enough light, a plant cannot photosynthesise very quickly - even if there is plenty of water and carbon dioxide and a suitable temperature. Increasing the light intensity increases the rate of photosynthesis, until some other factor - a limiting factor - becomes in short supply.
Need help ASAP!!!!
What is endoplasmic reticulum in your own word .
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Answer: Recondilogist.
Explanation:
Answer:
Explanation:
The endoplasmic reticulum is a network of tubular membranes that are made of two subunits: the rough endoplasmic reticulum and the smooth endoplasmic reticulum.
Describe what happens to the air in the lungs when we breathe. What happens to the concentration of
carbon dioxide and to the concentration of oxygen?
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When we breathe in, oxygen enters our lungs and enters small sacs in our lungs called the alveoli. In the alveoli, the oxygen diffuses INTO the bloodstream through small blood vessels, called capillaries, that surround these alveoli. The oxygen is now in our bloodstream instead of our lungs and is used in cell respiration etc.
Oppositely, carbon dioxide is diffused FROM the bloodstream TO the alveoli, also through these capillaries. The carbon dioxide is now in the lungs instead of the bloodstream and when you breathe out, the carbon dioxide is breathed out out of your lungs.
Hope this helped, even if it helped a tiny bit. :)
water transportation through a plant stem is an example of
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Answer:
Water Transportation in Plants
In order for a plant to access water for biological processes, it needs a system to move water from the ground to different plant parts. The chief water movement in plants is through osmosis from the roots to the stems to the leaves.
Explanation:
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Which of the following scenarios describes an example of extinction?
4 points
Water pollution kills off all the fish that live in a small pond.
Every individual in a species of wolf is killed by hunters or lack of food.
The cutting down of a tree forces a bird to build a new nest in another tree.
A population of deer must move to a new forest when its original habitat is destroyed by fire.
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Answer:
2-Every individual in a species of wolf is killed by hunters or lack of food.
Explanation:
Which of the following would most likely lead to an adaptation?
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explain three ways in which red blood cells are adapted to their function
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Answer:
Red blood cells are adapted to their function by:
1) They contain haemoglobin - a red protein that combines with oxygen. they have no nucleus so they can contain more haemoglobin.
2) They are small and flexible so that they can fit through narrow blood vessels.
3) They have a biconcave shape (flattened disc shape) to maximise their surface area for oxygen absorption.
Hope this helps! :D
Which abiotic factors would you expect to influence the growth of trees in the mountains?
Number of deer and insects
Types of trees and plants
Rainfall and the location on the mountain
Predator and prey population
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Answer:
The third option
Explanation:
Rainfall is a very important part in plant growth. The location of mountains is important because that's where the tree is gonna grow
Biologists discover problems by observing the world around them. *
True
False
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Answer:
I would say true, im not 100% right but I would go for True!
Explanation:
A boy is sliding What type of energy is shown in the picture?
a) electrical
b) chemical
c) kinetic
d) nuclear
Answers
Answer:
Kinetic
Explanation:
Because there is motion
Answer: D) Kinetic Energy
Explanation: Kinetic energy is energy in which a body possesses by virtue of being in motion.
Create an informative story that illustrates various ways of preventing diseases
that affect the respiratory and circulatory systems. You must also show the importance of
keeping our bodies healthy and free from illnesses. You can use another sheet/s of paper if the
available space is not enough.
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The correct answer to this open question is the following.
There is nothing most important than taking care of your body.
To do this, different methods will help to increase your health by improving your immune system.
preventing diseases
For instance, in the case of the respiratory and circulatory systems. You need to have a good diet that balances proteins, vitamins, carbohydrates, and lots of fruits and vegetables. Vitamin C is very good to strengthen the respiratory system.
Avoid sudden temperature changes, dress in layers, according to the climate conditions.
Regrading the circulatory system, nutrition is as important as any other thing. Avoid fats and excess sugar.
Respect sleeping time because good sleep is of the utmost importance. Be relaxed, avoid stressful situations that could compromise your heart., and practice moderate exercise routines such as walking, jogging, or proper gym routines.
Following are the various ways of preventing diseases that affect the respiratory and circulatory systems.
Stop smoking, avoid air pollution and exposure to those people who have the viral infections. Exercise regularly and eat a healthy diet. Maintain a healthy weight and check up annually to doctor..
Staying healthy physically can help us to have good emotionally. Eating the right food keep us fit, strong and fight with illness so we can conclude that exercise and good food keep us fit and healthy physically and emotionally.
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Warmer water due to climate change might favor harmful algae in a number of ways: ... Warmer water is easier for small organisms to move through and allows algae to float to the surface faster. Algal blooms absorb sunlight, making water even warmer and promoting more blooms.
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Answer:
See explanation
Explanation:
Actually, a warmer water is less dense than cold water. It follows that small organisms can easily move through a less dense water. Warm water allows algae to flow through it faster leading to an algal bloom facilitated by climate change.
The water will further be heated up by the fact that the increasing number of algae absorb sunlight thereby further increasing the temperature of the water. The foregoing explains the greater algal bloom in warm years.
Cacti typically have spines instead of leaves . The stem of a cactus is green , which indicates that it contains a chemical that is stored in a particular organelle . What is the name of the chemical in the stem of a cacti ? What organelle is the chemical stored in?
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Answer:
Chlorophyll
Chloroplast
Explanation:
Chlorophyll is a pigment found in the chloroplast organelle of certain organisms including plants, algae etc. Chlorophyll is the reason plants and certain algae are able to perform photosynthesis because chlorophyll pigment helps them capture light energy from the sun.
According to this question, a xerophytic plant called CACTUS, is being described to possess a chemical in one of its organelle that makes it seem green in appearance. That chemical is CHLOROPHYLL, with chemical formula, C₅₅H₇₂O₅N₄Mg. It is found in the CHLOROPLAST organelle as stated earlier and makes the stem of cactus and other plants green because it reflects green light and absorbs other colour of light. This makes organisms that possess chlorophyll appear GREEN.
Food web stability is most dependent on _____.
A.
the presence of decomposers
B.
the abundance of primary consumers
C.
the number of connections among species
D.
the severity of the ecosystem’s climate
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About how long (tall) is TMV
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What is the structure of dna?
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Answer:
two strands of nucleotides
Explanation:
nucleotides are made up of suger, a phosphate, and a nitrogen base The sugars and phosphates make up the ''handrails'' or ''backbone'' however you wanna say it and they are held together by covalent bonds.
What is the valence number of the
following atoms; carbon, nitrogen, oxygen, phosphorus and hydrogen?
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Answer:
C = 4
N = 5
P = 5
O = 6
H = 1
Explanation:
Valence number is the number of valence electron of an atom. It can be count through electronic configuration of an atom.
Oxygen is present in group 18.
Its atomic number is 8.
Electronic configuration:
O₈ = 1s² 2s² 2p⁴
In valence shell (2s² 2p⁴) there are six electron thus valence number of oxygen is six.
Carbon is present in group 14.
its atomic number is 6.
Electronic configuration:
C₆ = 1s² 2s² 2p²
In valence shell (2s² 2p²) there are four electron thus valence number of carbon is four.
Nitrogen is present in group 15.
Its atomic number is 7.
Electronic configuration:
N₇ = 1s² 2s² 2p³
In valence shell (2s² 2p³) there are five electron thus valence number of nitrogen is five.
Phosphorus is present in group 15.
Its atomic number is 15.
Electronic configuration:
P₁₅ = 1s² 2s² 2p⁶ 3s² 3p³
In valence shell (3s² 3p³) there are five electron thus valence number of phosphorus is five.
Hydrogen is present in group 1.
Its atomic number is one.
H₁ = 1s¹
Its valance number is 1.
The first comment is so wrong i made a 90% tho but the answer is: She is making observations in a digital laboratory.The photo shows a student conducting an experiment.
A woman wearing a lab coat and protective face mask and goggles holds test tubes in her hands as she looks at a laptop computer.
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Answer:
I think that it is A: She is following an experiment in a digital library. because it looks like she is following what her teacher is doing
Explanation:
Answer:
I want to put- A. She is following an experiment in a digital library.
Explanation:
So its D??
BRAINLYEST FOR BEST ANSWER AND NICE AMOUNT OF POINTS
what column of elements is least radioactive
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Answer:
Noble Gases.
Explanation:
The reason why I say this is due to them having eight valence electrons, their outer energy levels are full.
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15 PPPPPPPPOOOOOOOIIIIIIINNNNNNNTTTTTTSSSSSS!!!!!!!!
Order the steps of aerobic respiration:
A.) Glycolysis
B.) Electron Transport Chain
C.) Krebs's Cycle
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Glycolysis, krebs’s cycle, and Electron Transport cycle
:3
What is exocytosis and endocytosis? Think about what the words sound like.
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Answer:
Endocytosis= movement of large molecules into a cell, then digestion occurs in the cell.
Exocytosis= movement of wastes from the cell.
Explanation:
Here are some examples of Endocytosis and Exocytosis:
Endocytosis= Example 1: food of Euglena, paramecium
Example 2: WBCs engulfing bacteria
Exocytosis= Example 1: wastes removal from cell
Answer:
What is endocytosis? Endocytosis is cells that absorb external material by engulfing it with the cell membrane. What id exocytosis? Exocytosis is cells that move materials from within the cell into the extracellular fluid.
Explanation:
Hope this helps sorry if doesn't
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why is it important to protect the florida endangered plant campanula robiniae?
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Answer:
Rarity itself leads to an increased risk of endangerment and extinction, because rare plants with few and small populations are less able to recover from random events that wipe out individuals or entire populations. This kind of risk is called “stochastic risk”.
Explanation:
How much energy is needed to reduce glass bottles and aluminium cans?
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Answer:
is there multiple choice ?!??!!?
Explanation:
(A) Structure of Atmosphere:
Depending upon the physical characteristics such as temperature, density etc., the atmosphere is divided into five concentric layers.
These are:
(a) Troposphere;
ADVERTISEMENTS:
(b) Stratosphere;
(c) Mesosphere;
(d) Thermosphere or Ionosphere;
which of the 8 characteristics of life is the cell doing here?
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Answer:
I am hoping it to b on growth
what is an atom/molecule
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Answer:
amritacreate. Atoms are the smallest particle into which an element can be divided. Atoms can join together to form molecules, which in turn form most of the objects around you. Atoms are composed of particles called protons, electrons and neutrons
Explanation:
Answer:
An atom is the smallest unit of matter, and contains three parts: the proton, the neutron, and the electron. A molecule is a group of atoms bonded together.
Explanation:
Which section of the ladder codes for a hereditary trait?
A The top of the ladder
B The bottom of the ladder
C The vertical sides of the ladder
D The horizontal sections of the ladder
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Answer:
the answer is C
Explanation:
What is the electromagnetic spectrum? Where does it come from?
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Answer:
The electromagnetic (EM) spectrum is the range of all types of EM radiation. Radiation is energy that travels and spreads out as it goes.the visible light that comes from a lamp in your house and the radio waves that come from a radio station are two types of electromagnetic radiation.
The infecting virus particle found outside the host cell is ________.
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Answer:
capsid
When found outside of host cells, viruses exist as a protein coat or capsid, sometimes enclosed within a membrane. The capsid encloses either DNA or RNA which codes for the virus elements. While in this form outside the cell, the virus is metabollically inert; examples of such forms are pictured below.
Explanation: